The rapid, spontaneous transfer of electrostatic charge induced by a high electrostatic field. Note: Usually, the charge flows through a spark between two bodies at different electrostatic potentials as they approach one another. Details of such processes, such as the rate of the charge transfer, are described in specific electrostatic discharge models.

A barrier or enclosure that limits the passage of current and attenuates an electromagnetic field resulting from an electrostatic discharge. See ANSI/ESD S541, Packaging Materials for ESD Sensitive Items, for more information about ESD shielding and appropriate packaging materials.